The Quantitative Sudomotor Axon Reflex Test (QSART) measures the autonomic nerves that control sweating.These tests are particularly helpful in assessing patients with fainting or syncope. The Cardiovascular Autonomic Test with Tilt assesses how well a patient’s autonomic nervous system controls blood pressure and heart rate during different maneuvers: deep breathing, the Valsalva maneuver and head-up tilt.The Autonomic Section offers a comprehensive panel of cardiovascular and sudomotor tests to assess the full spectrum of autonomic disorders. Often, special testing of the autonomic nervous system is needed to assist in the diagnosis. This is accomplished by a thorough history and physical examination focused on the autonomic nervous system. Paresthesias: numbness or tingling in feet, legs, hands, arms or other body partsĬare begins with an accurate diagnosis of the presenting symptoms.Impaired sweating: excessive or decreased sweating.Gastrointestinal dysfunction: intermittent diarrhea, constipation, nausea, vomiting, full-ness after eating little, loss of appetite, slowing of gastric content, bloating, heartburn.Sexual dysfunction: erectile dysfunction, vaginal dryness, decreased libido.Urinary dysfunction: frequency, excessive urinating at night, urgency, stress incontinence, retention, hesitancy.Postural hypotension: lightheadedness, dizziness, fainting, dimness of vision, unsteady gait, weakness.What are the symptoms of autonomic neuropathy? Treatment with medicines, including chemotherapy and anticholinergic drugs.Toxicity (i.e., alcoholism, chemotherapy drugs, and heavy metal poisoning).

Porphyria (an enzyme disorder that mainly causes skin and/or nerve problems).Physical trauma, surgery, pregnancy, or viral illness.Paraneoplastic syndromes (disorders caused by an immune response to cancer).Nutritional deficiencies (i.e., vitamins B1, B3, B6, and B12).Lyme disease (a disease transmitted by ticks and causing flu-like symptoms).Deconditioning (a decrease in function due to inactivity or illness).Carcinomatous autonomic neuropathy (often related to small-cell lung cancer.Autoimmune neuropathies (i.e., Guillain-Barre syndrome, myasthenia gravis, rheumatoid arthritis, Sjogren’s syndrome, and systemic lupus erythematosus).Amyloidosis (abnormal protein build-up).Secondary causes of autonomic neuropathy include: Parkinson’s syndrome with autonomic failure.Multiple system atrophy with autonomic failure (Shy-Drager syndrome).Idiopathic orthostatic hypotension (progressive autonomic failure).Familial dysautonomia (Riley-Day syndrome).Primary causes of autonomic neuropathy include: Medication side effects can also be a problem. There are many underlying diseases and conditions that can lead to autonomic neuropathy.

Excessive adrenaline disorder